Rotating Angle Indicator Level for Continuous Bend Measurement
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Solution Overview
Problem
Conventional levels with bubble vials fail to provide continuous angle indication during large bend angles and multiple bends in workpieces, requiring frequent decoupling and resetting, which increases the risk of overshooting the desired bend angle.
Innovation Solution
A leveling tool with a rotating angle indicator, featuring a needle mounted on an axle within the level body, which remains pointed upward due to gravity, allowing continuous angle measurement during large bend angles and multiple bends without the need for decoupling, combined with side and end windows for enhanced viewing and level vials for levelness indication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional level with bubble vial is used, then the levelness indication is simple and reliable, but continuous angle indication during large bend angles cannot be provided
Solution Approach 1:
The patent applies the dynamics principle by implementing a rotatable angle indicator needle that can freely rotate about an axle within the level body. This dynamic component allows the indicator to continuously track and display angle changes during large bend angles and multiple bends, unlike static bubble vials that provide only limited levelness indication. The rotatable needle maintains continuous contact with the workpiece surface while dynamically adjusting its position to reflect the current angle.
Solution Approach 2:
The patent segments the measurement function into two independent components: a bubble vial for levelness indication and a rotatable angle indicator needle for continuous angle measurement. This segmentation allows each component to perform its specific function optimally - the bubble vial provides stable horizontal/vertical level reference, while the separate rotatable needle provides continuous angle indication without being constrained by the bubble vial's limited range.
2Reliability
If frequent decoupling and resetting is performed, then the level can be reused for different measurements, but the risk of overshooting the desired bend angle increases
Solution Approach 1:
The patent implements continuity of useful action through the rotatable angle indicator needle that remains engaged with the workpiece throughout the entire bending process. The needle continuously indicates the angle without requiring decoupling or resetting, allowing the operator to maintain continuous control and accurately stop at the desired bend angle. This eliminates the interruption and potential for error associated with frequent decoupling and resetting of conventional levels.
3Ease of operation
If the angle indicator is mounted at one end of the level body, then the viewing is simplified, but the level vial position becomes constrained
Solution Approach 1:
The patent resolves the spatial constraint by utilizing the longitudinal dimension of the level body. The angle indicator needle is mounted at one end (first end) for optimal viewing, while the bubble vial is positioned along the longitudinal axis at an intermediate location between the needle and the attachment device. This dimensional arrangement allows both components to coexist without interference, with the needle providing end-viewing capability and the vial providing side-viewing capability for levelness indication.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous angle indication during large bend angles and multiple bends, reducing the risk of overshooting the desired angle and providing additional levelness indications, enhancing the usability and accuracy of the leveling process.
Implementation Method 1
an angle indicating needle rotatably mounted to an axle supported by the level body... such that the angle indicating needle is viewable through the end window from outside of the level body from a viewing position located along the longitudinal axis
Implementation Method 2
the user views the location of a bubble within a vial relative to markings that indicate the levelness of the structure, surface or workpiece
Data Source
AI summary
A tool, such as a level, including a rotating angle indicator is provided. The level may include a gripping structure for coupling the level to a workpiece. The level may include one or more bubble level vials. The level may include a window arrangement to provide viewing of an angle-indicating needle from a variety of angles, and one such window may be located at the end of the level and at least partially surrounds the angle-indicating needle.